Features: 1.Applicable Models: Cylinder piston kit is replacement for Polaris Predator 90 2003?2006, please check carefully to make sure it is compatible with your vehicle. 2.Part Number: The referencing part number of the kit are A12101146000, A12251117000, A12191117000,A9100107128, A9405007000, 278002223, A13100146000, A13111117000, A13011146000, A13115101000, etc. 3.High Performance: The cylinder can work reliably under harsh conditions, effectively improving the engine displacement and performance Increase horsepower and torsion 4.Long Durability:: The cylinder kit is made of metal materials, with high strength, not easy to deform, strong impact resistance, reduced engine vibration and making driving more stable. 5.Ideal Replacement: Simple operation and easy control, used to replace the old and damaged one of the original vehicle to improve the riding experience. Specification: Item Type: Cylinder Piston Gasket Top End Kit Material: Metal Reference Part Number: A12101146000, A12251117000, A12191117000, A9100107128, A9405007000, 278002223, A13100146000, A13111117000, A13011146000, A13115101000, A12201117000 Cylinder Bore Size: Approx. 52mm/2.04in Cylinder Bore and Stroke: Approx. 52.00mm x 41.90mm/2.04x1.64in Cylinder Displacement 89cc / Compression 6.6:1 Application: Replacement for Polaris Predator 90 2003?2006 Package List: 1 x CylinderPistonKit(19PCS)